A massive underwater sinkhole made famous by Jacques Cousteau.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

An eerie, derelict amusement park in Berlin.

The hallucinogenic center of the ancient world.

This studio was home to David Bowie's first single, even if it did turn away the Beatles.

A recently restored Shoreditch landmark with ties to Jack the Ripper.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

An artistic tribute to the famous singer, just around the corner from where he was born.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

Pop culture has helped to keep this iconic British building from being destroyed.

Charles Babbage's proto-computer, painstakingly brought to life.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

The final resting place to 300 Victorian-era pets hides inside the city park.

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

Scattered throughout London are ancient remnants of the city's former bounding wall.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

A student driver's nightmare.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

Banksy gives themself artistic license with this piece of London street art.